Three companies with trillion-dollar-plus valuations are expected to go public in quick succession. New rules mean major stock indexes are fast-tracking their inclusion, triggering mandatory buying from the index funds that dominate American retirement accounts.

Three companies with trillion-dollar-plus valuations are expected to go public in quick succession. New rules mean major stock indexes are fast-tracking their inclusion,…

NEW YORK, May 27 : Large mutual funds and passive index funds are starting to set aside more cash and preparing to offload some of their existing holdings in large-cap stocks, as…